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Finding the Fourth Proportional to 5,989,743.20, 8,978,491.20 and 2,952,437.60

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Solution

The fourth proportional to 5,989,743.20, 8,978,491.20 and 2,952,437.60 is: 4,425,637.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,989,743.20 : 8,978,491.20 = 2,952,437.60 : x
  2. Step 2: Convert to fraction form
    5,989,743.20/8,978,491.20 = 2,952,437.60/x
  3. Step 3: Cross multiply
    5,989,743.20x = 8,978,491.20 × 2,952,437.60
  4. Step 4: Simplify right side
    5,989,743.20x = 26,508,435,010,149.12
  5. Step 5: Solve for x
    x = 26,508,435,010,149.12/5,989,743.20
  6. Step 6: Final answer
    x = 4,425,637.98

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.